PDP-11

[Paul Anderson]

I believe the boards were all designed as a M8045, which was the parity
model, and the M8044 was on the same artwork, just missing a few bits to
make it parity.

On Fri, May 13, 2016 at 5:52 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu>
wrote:

>     > From: Dave Wade
>
>     >> In theory, the M8044-EE should be an "MSV11-DE" (not "MSV11-EE",
> that
>     >> would be an M8045-EE), but none of my documentation, including the
>     >> M8044 prints, covers such a variant.
>
>     > The back of the board says M8045 5013128DP1 32K 18bit MOS memory
>
> All M8044's I've ever seen say M8045 in the etch. The M8044 is the
> non-parity
> version ("MSV11-Dx"), and the M8045 is the parity version ("MSV11-Ex"), and
> for the M8044's, they just left one row of chips out.
>
>     >> something like a BDV11 or something
>
>     > These all seem to have vanished from E-Bay at present.
>
> Paul A has (or used to have) a bunch of them.
>
>         Noel
>